. If r is the Karl Pearson’sncoefficient of correlation in a bivaria – McqOptions

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1.	. If r is the Karl Pearson’sncoefficient of correlation in a bivariatendistribution, the two regression lines are at rightnangles when ____
A.	r=±1
B.	r = 0
C.	r=±∞
D.	None
Answer» C. r=±∞

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